Monte Carlo study of the influence of electron beam focusing to SEM linewidth measurement

2013 ◽  
Author(s):  
P. Zhang ◽  
S. F. Mao ◽  
Z. M. Zhang ◽  
Z. J. Ding
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Monte Carlo Study ◽  
Beam Focusing ◽  
Linewidth Measurement

scholarly journals Qualitative analysis of irregular fields delivered with dual electron multileaf collimator: A Monte Carlo study

2016 ◽  
Vol 22 (1) ◽  
pp. 5-9
Author(s):  
Samuel Okon Inyang ◽  
Alan Chamberlain
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Qualitative Analysis ◽  
Monte Carlo Simulations ◽  
Electron Beams ◽  
Monte Carlo Study ◽  
Multileaf Collimator ◽  
Water Phantom ◽  
Electron Beam Therapy

Abstract The use of a dual electron multileaf collimator (eMLC) to collimate therapeutic electron beam without the use of cutouts has been previously shown to be feasible. Further Monte Carlo simulations were performed in this study to verify the nature and appearance of the isodose distribution in water phantom of irregular electron beams delivered by the eMLC. Electron fields used in this study were selected to reflect those used in electron beam therapy. Results of this study show that the isodose distribution in a water phantom obtained from the simulation of irregular electron beams through the eMLC conforms to the pattern of the eMLC used in the delivery of the beam. It is therefore concluded that the dual eMLC could deliver isodose distributions reflecting the pattern of the eMLC field that was used in the delivery of the beam.

A novel approach in electron beam radiation therapy of lips carcinoma: A Monte Carlo study

2013 ◽  
Vol 40 (4) ◽  
pp. 041720 ◽  
Author(s):  
Parvaneh Shokrani ◽  
Milad Baradaran-Ghahfarokhi ◽  
Maryam Khorami Zadeh
Keyword(s):  
Monte Carlo ◽  
Radiation Therapy ◽  
Electron Beam ◽  
Monte Carlo Study ◽  
Beam Radiation ◽  
Electron Beam Radiation ◽  
Novel Approach

A Monte Carlo study of an electron beam pumped cw argon ion laser

1988 ◽  
Vol 63 (5) ◽  
pp. 1313-1320 ◽  
Author(s):  
M. R. Sogard ◽  
I.‐J. Feng
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Monte Carlo Study ◽  
Argon Ion Laser ◽  
Ion Laser ◽  
Argon Ion

Evaluating the radiation contamination dose around a high dose per pulse intraoperative radiotherapy accelerator: a Monte Carlo study

2020 ◽  
Vol 19 (3) ◽  
pp. 265-276
Author(s):  
Seyed Rashid Hosseini Aghdam ◽  
Zahra Siavashpour ◽  
Seyed Mahmoud Reza Aghamiri ◽  
Saied Rabie Mahdavi ◽  
Nahid Nafisi
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Intraoperative Radiotherapy ◽  
Monte Carlo Study ◽  
High Dose ◽  
Simulation Code ◽  
Energy Distance ◽  
Measurement Results ◽  
Radiation Contamination ◽  
Relative Differences

AbstractAim:In this study, the radiation contamination dose (RCD) for different combinations of electron energy/distance, applicator and radius around the light intraoperative accelerator (LIAC), a high dose per pulse dedicated intraoperative electron radiotherapy machine, has been estimated. Being aware about the amount of RCDs is highly recommended for linear medical electron accelerators.Methods and methods:Monte Carlo Nuclear Particles (MCNP) code was used to simulate the LIAC® head and calculate RCDs. Experimental RCDs measurements were also done by Advanced Markus chamber inside a MP3-XS water phantom. Relative differences of simulations and measurements were calculated.Result:RCD reduction by distance from the machine follows the inverse-square law, as expected. The RCD was decreased by increasing angle from applicator walls opposed to the electron beam direction. The maximum differences between the simulation and measurement results were lower than 3%.Conclusions:The RCD is strongly dependent on electron beam energy, applicator size and distance from the accelerator head. Agreement between the MCNP results and ionometric dosimetry confirms the applicability of this simulation code in modelling the intraoperative electron beam and obtaining the dosimetric parameters. The RCD is a parameter that would restrict working with LIAC in an unshielded operative room.

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